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- - Royal Purple (https://67-72chevytrucks.com/vboard/showthread.php?t=758946)

tjc	03-10-2018 04:25 PM

Royal Purple

I have a new engine and new turbo 400. Is Royal Purple worth $15.00 a quart? At $15 x 12 quarts=$180.

truckster

03-10-2018 05:45 PM

Re: Royal Purple

Royal Purple is definitely a very fine motor oil, but I wouldn't use synthetic oil to break in an engine.

rsavage

03-10-2018 06:16 PM

Re: Royal Purple

If your engine has a flat tappet cam I suggest that you use Brad Penn break in oil 30w and after break in, Brad Penn Grade 1 10-40 or 20-50. Available through Summit.

tjc	03-10-2018 06:58 PM

Re: Royal Purple

sorry ....the Royal Purple was the trans fluid. for $15. quart

68Gold/white

03-10-2018 08:32 PM

Re: Royal Purple

Quote:

Originally Posted by tjc (Post 8208326)

I have a new engine and new turbo 400. Is Royal Purple worth $15.00 a quart? At $15 x 12 quarts=$180.

No, No, NO!

Regular dexron III in trans and Brad Penn in engine for break in...then what ever oil you want to use...NOT RP!

I'm from Iowa! BTW!

Bigdav160

03-10-2018 09:39 PM

Re: Royal Purple

Any of the new transmission fluids are synthetic base

Alex V.

03-10-2018 09:50 PM

Re: Royal Purple

There is no need for special oil in the trans. for break-in. Whatever quality of fluid you feel is necessary for the long-term is good from the start.

Brad Penn and Amsoil, among others, make high-zinc break-in oil. After the first 500 mi. (which should mean the rings have mostly seated and the cam is completely broken in) I'd run a 1,000 mi. change of a good high-zinc conventional (probably something rated SM) or use a zinc additive but *not both*.

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